| Author (and author names) | Published between | No. of references | No. of described taxa (valid) |
|---|---|---|---|
| Kaulfuss, U. | 2014–2016 | 2 | 4 |
| Kauppinen, S. N. | 2009 | 1 | – |
| Kaur, A. | 2009 | 1 | – |
| Kaur, I. | 2011 | 1 | – |
| Kaur, S. | 1981 | 1 | – |
| Kautz, S. | 2009 | 2 | – |
| Kawahara, Y. | 1999 | 1 | – |
| Kawamura, K. | 2022 | 1 | – |
| Kawazoe, A. | 1988–1994 | 2 | – |
| Kazmi, S. I. | 2020 | 1 | – |
| Keall, J. B. | 1980–1981 | 4 | – |
| Keegans, S. J. | 1990–2003 | 6 | – |
| Keilbach, R. | 1982 | 1 | – |
| Keister, M. | 1963 | 1 | – |
| Kelber, C. | 2009 | 1 | – |
| Keller, L. | 1989–2022 | 35 | – |
| Keller, R. A.; Keller, R. | 2000–2024 | 12 | 2 |
| Kellner, K. | 2011 | 1 | – |
| Kelly, R. S. | 2018 | 1 | – |
| Kempf, W. W. | 1949–1978 | 95 | 143 |
| Kendrick, P. G. | 1991 | 1 | – |
| Kenne, M. | 1994 | 1 | – |
| Kennedy, C. H. | 1933–1940 | 6 | 4 |
| Kennett, S. M. | 2024 | 1 | – |
| Kergoat, G. J. | 2007 | 1 | – |
| Kerkhofs, H. L. P. | 1985 | 1 | – |
| Kermarrec, A. | 1976–1985 | 4 | – |
| Kern, F. | 1995–1997 | 8 | – |
| Kerr, W. E. | 1961 | 1 | – |
| Kessel, E. W. | 1955 | 1 | – |
| Kessler, K. | 1868 | 1 | – |
| Ketterl, J. | 2003–2004 | 3 | 1 |
| Kevan, D. K. | 1970 | 1 | – |
| Khachonpisitsak, S. | 2018–2020 | 2 | 1 |
| Khadempour, L. | 2023 | 1 | – |
| Khalaim, A. I. | 2014 | 1 | – |
| Khaldi, M. | 2020 | 1 | 2 |
| Khalife, A. | 2018–2024 | 4 | – |
| Khalil, M. W. | 2013 | 1 | – |
| Khalili-Moghadam, A. | 2019–2024 | 6 | 7 |
| Khanikor, B. | 2021 | 1 | – |
| Khila, A. | 2011–2012 | 3 | – |
| Khokhar, M. S. | 2020 | 1 | – |
| Khokhar, M.S. | – | – | – |
| Khokhar, N. M. | 2020 | 1 | – |
| Kholová, H. | 1955 | 1 | – |
| Khomenko, V. N. | 1998 | 1 | – |
| Khomych, M. | 2022–2024 | 2 | 2 |
| Khomych, M. R. | 2020–2022 | 2 | 1 |
| Khoo, Y. H. | 1990 | 1 | – |
| Kiah, V. H. | – | – | – |
| Kiah, V.H. | – | – | – |
| Kidd, L. N. | 1975 | 1 | – |
| Kidd, M. G. | 1997 | 1 | – |
| Kieffer, J. J. | 1896 | 1 | – |
| Kiepenheuer, J. | 1971 | 1 | – |
| Kihara, A. | 1994–2003 | 6 | – |
| Kikuchi, T. | 1998–2006 | 4 | – |
| Kim, B.-J. | 1983–2006 | 23 | 4 |
| Kim, C.-H.; Kim, C. H. | 1980–1993 | 8 | – |